| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adj] [to-vb] [noun prp] [noun] | 20 |
|
| 2 | it [adj] [to-vb] [noun prp] [noun prp] | 17 |
|
| 3 | it difficult [to-vb] [noun prp] [noun] | 7 |
|
| 4 | it difficult [to-vb] [noun prp] [noun] | 7 |
|
| 5 | it [adj] [to-vb] mr [noun] | 5 |
|
